23686712 has 64 divisors (see below), whose sum is σ = 54432000. Its totient is φ = 9432576.

The previous prime is 23686709. The next prime is 23686717. The reversal of 23686712 is 21768632.

It is a happy number.

It is a super-2 number, since 2×23686712² = 1122120650741888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23686717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132239 + ... + 132417.

It is an arithmetic number, because the mean of its divisors is an integer number (850500).

Almost surely, 2^23686712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23686712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27216000).

23686712 is an abundant number, since it is smaller than the sum of its proper divisors (30745288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23686712 is a wasteful number, since it uses less digits than its factorization.

23686712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 344 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 23686712 is about 4866.8996291274. The cubic root of 23686712 is about 287.1893031710.

The spelling of 23686712 in words is "twenty-three million, six hundred eighty-six thousand, seven hundred twelve".